require(['webuploader'], function(webuploader){


	// 上传图片
	WU = function(){

		var $wrap = $('#uploader'),

            // 图片容器
            $queue = $( '<ul class="filelist"></ul>' )
            .appendTo( $wrap.find( '.queueList' ) ),

            // 状态栏，包括进度和控制按钮
            $statusBar = $wrap.find( '.statusBar' ),

            // 文件总体选择信息。
            $info = $statusBar.find( '.info' ),

            // 上传按钮
            $upload = $wrap.find( '.uploadBtn' ),

            // 没选择文件之前的内容。
            $placeHolder = $wrap.find( '.placeholder' ),

            $progress = $statusBar.find( '.progress' ).hide(),

            // 添加的文件数量
            fileCount = 0,

            // 添加的文件总大小
            fileSize = 0,

            // 优化retina, 在retina下这个值是2
            ratio = window.devicePixelRatio || 1,

            // 缩略图大小
            thumbnailWidth = 110 * ratio,
            thumbnailHeight = 110 * ratio,

            // 可能有pedding, ready, uploading, confirm, done.
            state = 'pedding',

            // 所有文件的进度信息，key为file id
            percentages = {},
            // 判断浏览器是否支持图片的base64
            isSupportBase64 = ( function() {
            	var data = new Image();
            	var support = true;
            	data.onload = data.onerror = function() {
            		if( this.width != 1 || this.height != 1 ) {
            			support = false;
            		}
            	}
            	data.src = "";
            	return support;
            } )(),

            // 检测是否已经安装flash，检测flash的版本
            flashVersion = ( function() {
            	var version;

            	try {
            		version = navigator.plugins[ 'Shockwave Flash' ];
            		version = version.description;
            	} catch ( ex ) {
            		try {
            			version = new ActiveXObject('ShockwaveFlash.ShockwaveFlash')
            			.GetVariable('$version');
            		} catch ( ex2 ) {
            			version = '0.0';
            		}
            	}
            	version = version.match( /\d+/g );
            	return parseFloat( version[ 0 ] + '.' + version[ 1 ], 10 );
            } )(),

            supportTransition = (function(){
            	var s = document.createElement('p').style,
            	r = 'transition' in s ||
            	'WebkitTransition' in s ||
            	'MozTransition' in s ||
            	'msTransition' in s ||
            	'OTransition' in s;
            	s = null;
            	return r;
            })(),

            // WebUploader实例
            uploader;

            if ( !webuploader.Uploader.support('flash') && webuploader.browser.ie ) {

            // flash 安装了但是版本过低。
            if (flashVersion) {
            	(function(container2) {
            		window['expressinstallcallback'] = function( state ) {
            			switch(state) {
            				case 'Download.Cancelled':
            				alert('您取消了更新！')
            				break;

            				case 'Download.Failed':
            				alert('安装失败')
            				break;

            				default:
            				alert('安装已成功，请刷新！');
            				break;
            			}
            			delete window['expressinstallcallback'];
            		};

            		var swf = './expressInstall.swf';
                    // insert flash object
                    var html = '<object type="application/' +
                    'x-shockwave-flash" data="' +  swf + '" ';

                    if (webuploader.browser.ie) {
                    	html += 'classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" ';
                    }

                    html += 'width="100%" height="100%" style="outline:0">'  +
                    '<param name="movie" value="' + swf + '" />' +
                    '<param name="wmode" value="transparent" />' +
                    '<param name="allowscriptaccess" value="always" />' +
                    '</object>';

                    container.html(html);

                })($wrap);

            // 压根就没有安转。
        } else {
        	$wrap.html('<a href="http://www.adobe.com/go/getflashplayer" target="_blank" border="0"><img alt="get flash player" src="http://www.adobe.com/macromedia/style_guide/images/160x41_Get_Flash_Player.jpg" /></a>');
        }

        return;
    } else if (!webuploader.Uploader.support()) {
    	alert( 'Web Uploader 不支持您的浏览器！');
    	return;
    }


		// 实例化
		uploader = webuploader.create({
			pick: {
				id: '#filePicker',
				label: '点击选择文件'
			},
			 formData: {
                goods_id:goods_id,
                path:'goods_album'
            },
			dnd: '#dndArea',
			paste: '#uploader',
			swf: uploader_swf,
			chunked: true,
			chunkSize: 512 * 1024,
			server: uploader_server,
			method:'POST',
            // runtimeOrder: 'flash',

            accept: {
                title: 'Images',
                extensions: 'gif,jpg,jpeg,bmp,png',
                mimeTypes: 'image/jpg,image/jpeg,image/png'
            },

            // 禁掉全局的拖拽功能。这样不会出现图片拖进页面的时候，把图片打开。
            disableGlobalDnd: true,
            fileNumLimit: 300,
            fileSizeLimit: 2000 * 1024 * 1024,    // 200 M
            fileSingleSizeLimit: 500 * 1024 * 1024    // 50 M
        });

		// uploader.addButton({
		// 		id: '#filePicker',
		// 		label: '点击选择文件123'
		// });



        // 拖拽时不接受 js, txt 文件。
        uploader.on( 'dndAccept', function( items ) {
        	var denied = false,
        	len = items.length,
        	i = 0,
                // 修改js类型
                unAllowed = 'text/plain;application/javascript ';

                for ( ; i < len; i++ ) {
                // 如果在列表里面
                if ( ~unAllowed.indexOf( items[ i ].type ) ) {
                	denied = true;
                	break;
                }
            }

            return !denied;
        });


        // 添加“添加文件”的按钮，
        uploader.addButton({
        	id: '#filePicker2',
        	label: '继续添加'
        });
        // 添加“添加下一个”模型的按钮，
        /*uploader.addButton({
            id: '#addModel',
            label: '添加下一个'
        });*/
        uploader.on('ready', function() {
        	window.uploader = uploader;
        });

        // 当有文件添加进来时执行，负责view的创建
        function addFile( file ) {
        	var $li = $( '<li id="' + file.id + '">' +
        		'<p class="title">' + file.name + '</p>' +
        		'<p class="imgWrap"></p>'+
        		'<p class="progress"><span></span></p>' +
        		'</li>' ),

        	$btns = $('<div class="file-panel">' +
        		'<span class="cancel">删除</span>' +
        		'<span class="rotateRight">向右旋转</span>' +
        		'<span class="rotateLeft">向左旋转</span></div>').appendTo( $li ),
        	$prgress = $li.find('p.progress span'),
        	$wrap = $li.find( 'p.imgWrap' ),
        	$info = $('<p class="error"></p>'),

        	showError = function( code ) {
        		switch( code ) {
        			case 'exceed_size':
        			text = '文件大小超出';
        			break;

        			case 'interrupt':
        			text = '上传暂停';
        			break;

        			default:
        			text = '上传失败，请重试';
        			break;
        		}

        		$info.text( text ).appendTo( $li );
        	};

        	if ( file.getStatus() === 'invalid' ) {
        		showError( file.statusText );
        	} else {
                // @todo lazyload
                $wrap.text( '预览中' );
                uploader.makeThumb( file, function( error, src ) {
                	var img;

                	if ( error ) {
                		$wrap.text( '不能预览' );
                		return;
                	}

                	if( isSupportBase64 ) {
                		img = $('<img src="'+src+'">');
                		$wrap.empty().append( img );
                	} else {
                		$.ajax('../../server/preview.php', {
                			method: 'POST',
                			data: src,
                			dataType:'json'
                		}).done(function( response ) {
                			if (response.result) {
                				img = $('<img src="'+response.result+'">');
                				$wrap.empty().append( img );
                			} else {
                				$wrap.text("预览出错");
                			}
                		});
                	}
                }, thumbnailWidth, thumbnailHeight );

                percentages[ file.id ] = [ file.size, 0 ];
                file.rotation = 0;
            }

            file.on('statuschange', function( cur, prev ) {
            	if ( prev === 'progress' ) {
            		$prgress.hide().width(0);
            	} else if ( prev === 'queued' ) {
            		$li.off( 'mouseenter mouseleave' );
            		$btns.remove();
            	}

                // 成功
                if ( cur === 'error' || cur === 'invalid' ) {
                	console.log( file.statusText );
                	showError( file.statusText );
                	percentages[ file.id ][ 1 ] = 1;
                } else if ( cur === 'interrupt' ) {
                	showError( 'interrupt' );
                } else if ( cur === 'queued' ) {
                	percentages[ file.id ][ 1 ] = 0;
                } else if ( cur === 'progress' ) {
                	$info.remove();
                	$prgress.css('display', 'block');
                } else if ( cur === 'complete' ) {
                	$li.append( '<span class="success"></span>' );
                }

                $li.removeClass( 'state-' + prev ).addClass( 'state-' + cur );
            });

            $li.on( 'mouseenter', function() {
            	$btns.stop().animate({height: 30});
            });

            $li.on( 'mouseleave', function() {
            	$btns.stop().animate({height: 0});
            });

            $btns.on( 'click', 'span', function() {
            	var index = $(this).index(),
            	deg;

            	switch ( index ) {
            		case 0:
            		uploader.removeFile( file );
            		return;

            		case 1:
            		file.rotation += 90;
            		break;

            		case 2:
            		file.rotation -= 90;
            		break;
            	}

            	if ( supportTransition ) {
            		deg = 'rotate(' + file.rotation + 'deg)';
            		$wrap.css({
            			'-webkit-transform': deg,
            			'-mos-transform': deg,
            			'-o-transform': deg,
            			'transform': deg
            		});
            	} else {
            		$wrap.css( 'filter', 'progid:DXImageTransform.Microsoft.BasicImage(rotation='+ (~~((file.rotation/90)%4 + 4)%4) +')');
                    // use jquery animate to rotation
                    // $({
                    //     rotation: rotation
                    // }).animate({
                    //     rotation: file.rotation
                    // }, {
                    //     easing: 'linear',
                    //     step: function( now ) {
                    //         now = now * Math.PI / 180;

                    //         var cos = Math.cos( now ),
                    //             sin = Math.sin( now );

                    //         $wrap.css( 'filter', "progid:DXImageTransform.Microsoft.Matrix(M11=" + cos + ",M12=" + (-sin) + ",M21=" + sin + ",M22=" + cos + ",SizingMethod='auto expand')");
                    //     }
                    // });
                }


            });

            $li.appendTo( $queue );
        }

        // 负责view的销毁
        function removeFile( file ) {
        	var $li = $('#'+file.id);

        	delete percentages[ file.id ];
        	updateTotalProgress();
        	$li.off().find('.file-panel').off().end().remove();
        }

        function updateTotalProgress() {
        	var loaded = 0,
        	total = 0,
        	spans = $progress.children(),
        	percent;

        	$.each( percentages, function( k, v ) {
        		total += v[ 0 ];
        		loaded += v[ 0 ] * v[ 1 ];
        	} );

        	percent = total ? loaded / total : 0;


        	spans.eq( 0 ).text( Math.round( percent * 100 ) + '%' );
        	spans.eq( 1 ).css( 'width', Math.round( percent * 100 ) + '%' );
        	updateStatus();
        }

        function updateStatus() {
        	var text = '', stats;

        	if ( state === 'ready' ) {
        		text = '选中' + fileCount + '张图片，共' +
        		webuploader.formatSize( fileSize ) + '。';
        	} else if ( state === 'confirm' ) {
        		stats = uploader.getStats();
        		if ( stats.uploadFailNum ) {
        			text = '已成功上传' + stats.successNum+ '文件，'+
        			stats.uploadFailNum + '文件上传失败，<a class="retry" href="#">重新上传</a>失败或<a class="ignore" href="#">忽略</a>'
        		}

        	} else {
        		stats = uploader.getStats();
        		text = '共' + fileCount + '个（' +
        		webuploader.formatSize( fileSize )  +
        		'），已上传' + stats.successNum + '个';

        		if ( stats.uploadFailNum ) {
        			text += '，失败' + stats.uploadFailNum + '个';
        		}
        	}

        	$info.html( text );
        }

        function setState( val ) {
        	var file, stats;

        	if ( val === state ) {
        		return;
        	}

        	$upload.removeClass( 'state-' + state );
        	$upload.addClass( 'state-' + val );
        	state = val;

        	switch ( state ) {
        		case 'pedding':
        		$placeHolder.removeClass( 'element-invisible' );
        		$queue.hide();
        		$statusBar.addClass( 'element-invisible' );
        		uploader.refresh();
        		break;

        		case 'ready':
        		$placeHolder.addClass( 'element-invisible' );
        		$( '#filePicker2' ).removeClass( 'element-invisible');
        		$queue.show();
        		$statusBar.removeClass('element-invisible');
        		uploader.refresh();
        		break;

        		case 'uploading':
        		$( '#filePicker2' ).addClass( 'element-invisible' );
        		$progress.show();
        		$upload.text( '暂停上传' );
        		break;

        		case 'paused':
        		$progress.show();
        		$upload.text( '继续上传' );
        		break;

        		case 'confirm':
        		$progress.hide();
        		$( '#filePicker2' ).removeClass( 'element-invisible' );
        		$upload.text( '开始上传' );
                    /*$('#filePicker2 + .uploadBtn').click(function () {
                        window.location.reload();
                    });*/
                    stats = uploader.getStats();
                    if ( stats.successNum && !stats.uploadFailNum ) {
                    	setState( 'finish' );
                    	return;
                    }
                    break;
                    case 'finish':
                    stats = uploader.getStats();
                    if ( stats.successNum ) {
                    	// document.getElementById("shareUrl").style.visibility = 'visible';
                    	// createQrcode();
                    } else {
                        // 没有成功的图片，重设
                        state = 'done';
                        location.reload();
                    }
                    break;
                }

                updateStatus();
            }

            uploader.on('uploadSuccess', function (file,response) {
                if(response.code==1){
                    // alert(response.url);
                    // alert(response.id);
                    var parent_image_div       = parent.$('#image-div');

                    var w1 = '<div class="col-lg-3 col-xs-4" >' +
                                ' <div class="small-box bg-aqua">' +
                                    '<div class="inner">' +
                                        '<img class="img-responsive img-thumbnail center-block" src="' + response.url + '" alt="Photo">' +
                                    '</div>' +
                                   ' <a href="javascript:;" class="small-box-footer delete-image" data-id="' + response.id + '" data-url="/admin/goods/deletealbum.html">' +
                                        '删除 <i class="fa fa-close"></i>' +
                                    '</a>' +
                                '</div>' +
                            '</div>';


                    parent_image_div.append(w1);//成功的，明天继续
                }
            });

            uploader.onUploadProgress = function( file, percentage ) {
            	var $li = $('#'+file.id),
            	$percent = $li.find('.progress span');

            	$percent.css( 'width', percentage * 100 + '%' );
            	percentages[ file.id ][ 1 ] = percentage;
            	updateTotalProgress();
            };

            uploader.onFileQueued = function( file ) {
            	fileCount++;
            	fileSize += file.size;

            	if ( fileCount === 1 ) {
            		$placeHolder.addClass( 'element-invisible' );
            		$statusBar.show();
            	}

            	addFile( file );
            	setState( 'ready' );
            	updateTotalProgress();
            };

            uploader.onFileDequeued = function( file ) {
            	fileCount--;
            	fileSize -= file.size;

            	if ( !fileCount ) {
            		setState( 'pedding' );
            	}

            	removeFile( file );
            	updateTotalProgress();

            };

            uploader.on( 'all', function( type ) {
            	var stats;
            	switch( type ) {
            		case 'uploadFinished':
            		setState( 'confirm' );
            		break;

            		case 'startUpload':
            		setState( 'uploading' );
            		break;

            		case 'stopUpload':
            		setState( 'paused' );
            		break;

            	}
            });

            uploader.onError = function( code ) {
            	alert( 'Eroor: ' + code );
            };

            $upload.on('click', function() {
            	if ( $(this).hasClass( 'disabled' ) ) {
            		return false;
            	}

            	if ( state === 'ready' ) {
            		uploader.upload();
            	} else if ( state === 'paused' ) {
            		uploader.upload();
            	} else if ( state === 'uploading' ) {
            		uploader.stop();
            	}
            });

            $info.on( 'click', '.retry', function() {
            	uploader.retry();
            } );

            $info.on( 'click', '.ignore', function() {
            	alert( 'todo' );
            } );

            $upload.addClass( 'state-' + state );
            updateTotalProgress();



	};




	// 选择图片，点击上传，上传回调
    // setTimeout(function(){
    //     WU();
    // }, 100);

    WU();

});

